I'm still looking for all of these, of course.
Since the thread was active I finally found a nice chGem '84-P. It is highly PL and nearly flawless except for a couple tiny plating bubbles on the reverse. I found a companion piece from the same die pair that is nearly as nice with a little light marking but no plating bubbles at all.
This date is very tough in PL. It is tough without bubbles. It is tough with nice surfaces. It is a little tough with good strikes. It isn't easy without marking. To find all these on a single coin is almost a miracle.
Time don't fly, it bounds and leaps.